Bi-CMOS logic circuit

A Bi-CMOS logic circuit having a totem pole-type output buffer, a CMOS logic circuit, and a latch circuit. The output buffer comprises a pull-up NPN bipolar transistor and a pull-down NPN bipolar transistor. The CMOS logic circuit controls the base current of the pull-up NPN bipolar transistor. The...

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Bibliographische Detailangaben
Hauptverfasser:	MATSUI, MASATAKA
Format:	Patent
Sprache:	eng
Schlagworte:	BASIC ELECTRIC ELEMENTS BASIC ELECTRONIC CIRCUITRY ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR ELECTRICITY PULSE TECHNIQUE SEMICONDUCTOR DEVICES
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Beschreibung
Zusammenfassung:	A Bi-CMOS logic circuit having a totem pole-type output buffer, a CMOS logic circuit, and a latch circuit. The output buffer comprises a pull-up NPN bipolar transistor and a pull-down NPN bipolar transistor. The CMOS logic circuit controls the base current of the pull-up NPN bipolar transistor. The latch circuit controls the base current of the pull-down NPN bipolar transistor. The latch circuit includes at least two N-type MOSFETs. The first MOSFET has a gate coupled to the input terminal of the CMOS logic circuit, a drain connected to the node of the first and second NPN bipolar transistors, and a source coupled to the base of said second NPN bipolar transistor. The second MOSFET has a drain coupled to the input terminal of the CMOS logic circuit, a gate connected to the node of the first and second NPN bipolar transistors, and a source coupled to the base of said second NPN bipolar transistor.